chore: finish frontend ESLint migration #18

Enable every plugin recommended preset and replace Biome with ESLint formatting.

Preserve API contracts and JSX whitespace; verify source, tests, builds and tooling.

src/app/ui/AppBreadcrumbs/StockBreadcrumbs.tsx

@@ -1,6 +1,9 @@
 import type { FC } from "react";
+
 import { useTranslation } from "react-i18next";
+
 import { useStock } from "@/entities/stock";
+
 import { BreadcrumbTrail } from "./BreadcrumbTrail";
 
 type StockBreadcrumbsProps = { identifier: string };